Arnold M Chester, 91Fenwick, CT
Arnold Chester Phones & Addresses
Old Saybrook, CT
129 Montclair Dr, West Hartford, CT 06107 860-2324313
East Hartford, CT
16 Pequot Trl, Old Saybrook, CT 06475 860-8470837
Mentions for Arnold M Chester
Publications & IP owners
Us Patents
Pressure Actuated Resilient Valve Seal
US Patent:
4210313, Jul 1, 1980
Filed:
May 5, 1975
Appl. No.:
5/574570
Inventors:
Arnold M. Chester - West Hartford CT
Assignee:
Litton Industrial Products, Inc. - East Hartford CT
International Classification:
F16K 122
US Classification:
251306
Abstract:
A valve comprising a closure member including an annular peripheral sealing surface, a supporting shaft fixedly secured to opposing sides of the closure member, a housing including a cylindrical flow passage and means for rotatably supporting the closure member supporting shaft, means for rotating the closure member from a first position, whereat the flow passage is open, to a second position, whereat the flow passage is closed, an annular valve seat including an annular sealing surface, the housing further including an annular valve seat receiving channel selectively configured to support the annular valve seat for mating engagement with the closure member sealing surface when the closure member is at the closed position and the valve seat is at the neutral or zero pressure position, the valve seat including a recessed portion on one side thereof with a first annular groove extending axially into the valve seat from the recessed portion and a second annular groove extending axially into the other side of the valve seat, the second groove dividing the other valve seat side into upper and lower portions, the side of the receiving channel adjacent to the other side of the valve seat being spaced from the lowermost part of the upper portion and being selectively inclined relative thereto, when the valve seat is in the neutral position, to establish a spacing therebetween which linearly increases towards the uppermost part of the upper portion to permit selected rotation of the valve seat into engagement therewith, the annular closure member sealing surface extending incrementally radially outwardly from the one side to the other side of the valve seat.
Temperature Responsive Valve Seal
US Patent:
4105040, Aug 8, 1978
Filed:
Jun 27, 1977
Appl. No.:
5/810302
Inventors:
Arnold M. Chester - West Hartford CT
International Classification:
F16K 506
US Classification:
137 72
Abstract:
A butterfly valve with a conventional resilient seal of rubber or plastic or the like is provided with a secondary seal of a hard, fire resistant material such as metal. The secondary seal is in the form of a split ring which is held in an expanded condition with a fusible link which will melt at some selected temperature such that the secondary seal is normally out of contact with the sealing surface of the butterfly. At the selected temperature, the fusible link melts permitting the secondary seal to contract into a sealing position to replace the resilient seal prior to or coincident with the destruction of the resilient seal by the high temperature.
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